11 http://www.jwz.org/xscreensaver/
13 ===============================================================================
15 This is the XScreenSaver source code distribution. It is strongly recommended
16 that you install a binary release rather than trying to compile it yourself.
17 Binaries are available for almost all platforms, including MacOS X. See the
18 XScreenSaver web site for details.
20 To compile on a Unix system with X11:
26 To compile on MacOS X:
28 Use the included XCode project. Requires XCode 2.4 and MacOS X 10.4.0
31 Interested in writing a new screen saver?
33 See the README.hacking file.
35 ===============================================================================
37 XScreenSaver has an extensive manual -- please read it!
39 ===============================================================================
41 Changes since 5.08: * Ported to MacOS 10.6, including various 64-bit fixes.
42 * New hack, `rubikblocks'.
43 * Fixed another potential RANDR crash.
44 * Use correct proxy server on MacOS.
45 * `molecule' now correctly displays PDB 3.2 files.
46 * Updates to `mirrorblob', `glhanoi', and `sonar'.
47 * Rewritten version of `klein' hack.
48 * New hack, `surfaces', incorporating objects from old
49 `klein' hack, plus new ones.
50 * Merged `juggle' and `juggler3d' hacks.
51 * Fixed compilation under gcc 4.4.0 (strict aliasing).
52 * Fixed intermittent failure in `xscreensaver-command'.
53 Changes since 5.07: * New hack, `photopile'.
54 * Rewrote `sonar' and `jigsaw' as OpenGL programs.
55 * Minor tweaks to `maze', `m6502', `hypnowheel', and
57 * Savers that load images now obey EXIF rotation tags.
58 * Arrgh, more RANDR noise! Fixes this time for rotated
59 screens, and for systems where RANDR lies and says the
61 * When the password dialog has timed out or been
62 cancelled, don't pop it right back up a second time.
63 * Password timeouts/cancels don't count as
65 * Retired some of the older, less interesting savers:
66 say goodbye to `bubbles', `critical', `flag', `forest',
67 `glforestfire', `lmorph', `laser', `lightning', `lisa',
68 `lissie', `rotor', `sphere', `spiral', `t3d', `vines',
69 `whirlygig', and `worm'.
70 * Merged `munch' and `mismunch'.
71 * Updated `webcollage' to use twitpic.com as well.
72 Changes since 5.06: * Xinerama/RANDR tweaks for old-style multi-screen.
73 * Added bumpy skin and cel shading to `skytentacles'.
74 * `flipflop' can load images onto the tiles.
75 * Fixed the bouncing ball in `stairs'.
76 * Added the missing Utah Teapotahedron to `polyhedra'.
77 * `blitspin' works with color images on OSX now.
78 * Added transparency to `stonerview'.
79 * Improved layout of the preferences dialogs: they
80 should all now be usable even on ridiculously tiny
82 * MacOS preferences text fields now prevent you from
83 entering numbers that are out of range.
84 * Added "Reset to Defaults" button on X11.
85 * Added relevant Wikipedia links to many of the screen
87 * All hacks support the `-fps' option, not just GL ones.
88 * The `-fps' option now shows CPU load.
89 Changes since 5.05: * Xinerama/RANDR fixes: this time for sure. It should
90 now work to add/remove monitors or resize screens at
92 * New hack, `skytentacles'.
93 * New version of `gleidescope'.
94 * Added the `-log' option to the xscreensaver daemon,
95 since a truly shocking number of Linux users seem to
96 have no idea how to redirect output to a file.
97 * Added `-duration' arg to most image-loading hacks,
98 so that they pick a new image every few minutes.
99 * Added an ATM crash to BSOD.
100 Changes since 5.04: * New hacks, `cubicgrid', `hypnowheel', and
101 `lcdscrub' (which isn't really a screen saver).
102 * Updates to `m6502' and `gears'.
103 * Fixed double-buffering problems in `cubestorm' and
105 * Better handling of horizontal scroll wheels.
106 * Attempt to work around latest Xinerama braindamage:
107 if the server reports overlapping screens, use the
108 largest non-overlapping rectangles available.
109 * Don't warning about receipt of bogus ClientMessages,
110 since Gnome's just never going to stop sending those.
111 * Worked around MacOS 10.5 perl bug that caused the
112 text-displaying hacks to fail on some systems.
113 * Hopefully fixed font-related System Preferences crashes
115 * The recent PAM changes broke the "Caps Lock" warning
116 in the password dialog, the failed login warnings, and
117 syslogging. Fixed all that.
118 Changes since 5.03: * Fixed a possible crash in the unlock dialog (more
119 fallout from the recent PAM changes...)
120 * New hacks, `moebiusgears', `abstractile', and
122 * Rewrote `gears' to use better (involute) gear models,
123 and to be more random.
124 * Minor updates to `cwaves', `voronoi', `deco',
125 `glcells', `rd-bomb', `fireworkx' and `webcollage'.
126 * `pong' can now display the current time as the score.
127 * `xmatrix -mode pipe' works better.
128 * Minor tweaks for compilation on MacOS 10.5.0.
129 Changes since 5.02: * New hacks, `cwaves', `glcells', `m6502', and `voronoi'.
130 * Minor fixes to `bsod'.
131 * Fixed possible crash with PAM USB-dongle auth.
132 * Updated `webcollage' to track recent Google Images
134 Changes since 5.01: * Reworked PAM code to support fingerprint readers, etc.
135 * Ported 'webcollage' to OSX.
136 * Added OSX 10.2 and 10.3 kernel panics to `bsod'.
137 * Fixed a Xinerama crash when changing the screen count.
138 * New blobbier `mirrorblob'.
139 * Minor updates to `lisa', `bsod', `ifs', `hypertorus',
140 `polytopes', `circuit', `endgame', `crackberg',
141 `flipflop', `flipscreen3d', `fliptext', and `carousel'.
142 * Enabled multi-threaded OpenGL on OSX.
143 Changes since 5.00: * Backed out recent locale-related changes, since they
144 broke far more things than they fixed.
145 * Fail gracefully with ridiculously small window sizes.
146 * `xflame' and `flag' ignore bitmap option on MacOS.
147 * `speedmine' prefs work on MacOS.
148 * Better explosions in `boxed'.
149 * More dynamic motion in `sproingies'.
150 * More options in `flipflop'.
151 * Minor updates to `topblock'.
152 * Various other minor fixes.
153 Changes since 4.24: * Ported to MacOS X! (10.4.0 or newer)
154 * API change: instead of providing a single screenhack()
155 function that does not return, screen savers using the
156 screenhack.h framework must now provide "init" and
157 "draw one frame" functions instead. All bundled savers
158 have been updated; third-party patches will need work.
159 * All image-loading happens asynchronously.
160 * xscreensaver-getimage-file caches the contents of the
161 image directory for a few hours, so consecutive runs
162 won't have to re-list the whole directory tree.
163 * New hacks, `topblock' and `glschool'.
164 * Removed `xteevee' (superceded by `xanalogtv').
165 * Added variable-sized puzzle pieces to `jigsaw'.
166 * Changes to the defaults and command-line options of
167 many hacks to make the .xml files more consistent.
168 * Reap zombies in `glslideshow' and `carousel'.
169 * `sonar' works without setuid on OSX (dgram icmp).
170 * `xmatrix -mode pipe' displays the text of a subprocess.
171 * `endgame' has higher resolution chess-piece models.
172 * `webcollage' takes a -directory option to get images
173 from a local directory.
174 * The RPM spec file no longer auto-restarts xscreensaver
175 when a new version is installed. Restart it manually.
176 Changes since 4.23: * New versions of `cube21', `glsnake', `celtic'.
177 * Backed out a DPMS-related patch that cause desktop
178 flickering with some X servers.
179 * Fixed startup crash in getgroups() when running setuid.
180 * Default to not displaying stderr on the saver window.
181 * Fixed bad free() in "Documentation" button.
182 * Don't try to run hacks that aren't installed.
183 * Minor fixes to various XML config files and man pages.
184 Changes since 4.22: * New hacks, `glhanoi', `cube21', `timetunnel',
185 `juggler3d', and `celtic'.
186 * New versions of `tangram', `webcollage', `hypertorus',
187 `polytopes', and `ripples'.
188 * `sonar' is now quiet about unresolvable hosts.
189 * Minor corrections to BASIC code in `apple2'.
190 * xscreensaver-demo now provides an RPM clue when none
191 of the hacks seem to be installed.
192 * Don't install `ant' by default, since there is some
193 Java tool of that name, which was causing confusion.
194 And also it's boring.
195 * Made screen grabbing work again on MacOS 10.4.2.
196 * No longer prints bogus warnings about ClientMessages
197 intended for the window manager.
198 * Ignore unprintable characters in passwd entry field.
199 * Fixed yet another cross-host-display image-loading
201 * `xscreensaver-command -watch' and `-time' now work
203 Changes since 4.21: * Fixed a bug in the new mouse-motion code that caused
204 the screen to never blank on multi-head non-Xinerama
206 * New hacks, `interaggregate', `antmaze', `tangram',
208 * Minor tweaks to `fiberlamp', `ifs', `slidescreen',
209 `zoom', `sonar', `fireworkx', `whirlwindwarp',
210 `bubble3d', and `rd-bomb'.
211 * Added motion blur to `blinkbox'.
212 * `bsod' now includes Longhorn's "RSOD", and OS/2.
213 * Fixed `-wireframe' usage in most hacks and man pages.
214 Changes since 4.20: * New hack: `fliptext'.
215 * Changed default configure installation directories:
216 /usr/bin/ for xscreensaver, etc.;
217 /usr/libexec/xscreensaver/ for hacks;
218 /usr/share/xscreensaver/config/ for xml files.
219 * All the text-manipulating screen savers can have their
220 text source configured via `xscreensaver-demo' now.
221 * xscreensaver.spec now builds three RPMs:
222 base (no hacks); extras (2d hacks); and gl-extras.
223 * Added `-program' and `-front' option to `gltext'.
224 * Added `-shells' to `molecule'.
225 * Fixed text-alpha glitch in `carousel'.
226 * New `pacman': the ghosts can be killed now.
227 * Fixed a bug in screen-grabbing GL hacks where images
228 would be tiled instead of scaled on machines that
229 can't do large textures.
230 * `webcollage' can hit Flickr now.
231 * New (rewritten) implementation of `ifs'.
232 * The unlock dialog can be made to have a "New Login"
233 button that will run `gdmflexiserver'. Experimental!
234 * Fixed non-ASCII display bug in `starwars'.
235 * Configure finds a default for imageDirectory.
236 * "xscreensaver-command -lock" now works even if
237 in "screensaver disabled" mode.
238 * If a bad password is typed while CapsLock is on, the
239 unlock dialog says "CapsLock?" instead of "Sorry".
240 * Mouse motion only counts as activity if the mouse moved
241 more than 10 pixels (so the screen won't unblank every
242 time you bump your desk.)
243 * New mode option "random-same": if you have multiple
244 monitors, this will run the *same* randomly chosen
245 hack on each screen, instead of different ones on each.
246 Changes since 4.19: * New hacks, `fiberlamp', `boing', `boxfit', and
248 * Rewrote `glslideshow' again: should be faster now.
249 * Sped up loading of images in GL programs.
250 * `starwars' uses texture-mapped fonts now.
251 * New `bsod' modes: tru64, hppa, and nvidia.
252 * Updates to `webcollage', `juggle', `pinion',
253 `fireworkx', `sonar', `extrusion', `substrate', and
255 Changes since 4.18: * New hacks, `substrate', `intermomentary', `fireworkx',
257 * New version of `flow'.
258 * Made /proc/interrupts work again on Linux 2.6.
259 * Made `analogtv' not hog the CPU.
260 * Made analogtv-based hacks work properly on PPC/ARM.
261 * Fixed a bad memory leak in `piecewise'.
262 * Minor updates to `sonar', `molecule', `glmatrix',
263 `galaxy', and `webcollage'.
264 * Removed support for GTK 1.x (everyone uses 2.x now.)
265 Changes since 4.17: * Oops, pay no attention to the man behind the curtain.
266 Changes since 4.16: * New hacks, `anemotaxis' and `memscroller'.
267 * Fixed a bad bug that caused `vidwhacker' to never die.
268 * Fixed normals and lighting in `polyhedra'.
269 * Don't reuse the window when changing hacks (to work
270 around bugs in some GL implementations.)
271 * Made `xscreensaver-getimage-file' skip thumbnail-sized
273 * Fixed endian problem in `barcode' on non-x86.
274 * Updates to `webcollage', `apple2', `fuzzyflakes',
275 `atunnel', and `pacman'.
276 * Timing tweaks to `bubble3d', `bouncingcow', `engine',
277 `gltext', `lavalite', `molecule', `spotlight',
278 `sballs', `boxed', `blinkbox', and `circuit'.
279 * Configure updates for Fedora core 2 / xorg 6.7.0.
280 * Compile without warnings under gcc 3.3.3.
281 * I give up: don't blank or lock the screen if we can't
282 get a keyboard grab. In that case, both choices are
284 Changes since 4.15: * New hacks, `polyhedra', `fuzzyflakes', `antinspect',
286 * Minor updates to `webcollage', `bsod', `endgame',
287 `antspotlight', `xmatrix', and `glmatrix'.
288 * Added support for the RANDR (Resize and Rotate)
289 extension to detect when the size of the desktop has
290 been changed while xscreensaver is already running.
291 * Possibly-futile attempt to work around "rdesktop"
293 * Made `xscreensaver-getimage -file' still work even if
294 imageDirectory is unset.
295 * Convert Latin1 to ASCII in `starwars' and `phosphor'
296 (since the GLUT font only has ASCII glyphs.)
297 * Fixed randomization in `noof'.
298 * Added "GetViewPortIsFullOfLies" preference to work
299 around longstanding XFree86 bug #421.
300 * Made `sonar' subnet pinging work properly on bigendian
301 machines (e.g., PPC.)
302 Changes since 4.14: * New hacks, `wormhole', `mismunch', `noof', and
304 * `phosphor' and `apple2' include vt100 emulators now:
305 this means you can do "phosphor -program top", or
306 can use either program as an xterm replacement:
307 "apple2 -text -fast -program 'xemacs -nw'".
308 * `analogtv' (and related) fill the screen better.
309 * The '-gradient' option works in `atlantis' now.
310 * Minor updates to `blinkbox', `queens', `endgame',
311 `glmatrix', `mirrorblob', `blocktube', and `molecule'.
312 * Integrated SuSE's "external passwd helper" support.
313 * Marginally better /tmp handling in various programs.
314 * Updated config defaults for xplanet 1.0.3.
316 Changes since 4.13: * New hacks, `fontglide', `apple2', `xanalogtv', `pong',
317 `gleidescope', `mirrorblob', and `blinkbox'.
318 * New version of `glsnake' (with many more models.)
319 * Another Windows crash in `bsod'; also HVX/GCOS6/TPS6.
320 * New version of `endgame'.
321 * Screen grabbing works on MacOS X.
322 * Various minor fixes.
323 Changes since 4.12: * On Xinerama systems, xscreensaver now runs one hack on
324 each monitor (just like in "real" multi-head mode)
325 instead of running one hack stretching across all the
326 screens. Note that for this to work with any 3rd party
327 screensavers, they must update their "vroot.h" file.
328 * `webcollage' and `vidwhacker' display images using
329 `xscreensaver-getimage' now.
330 * Added `ljlatest' script for use with `starwars' and
332 Changes since 4.11: * New GL hacks, `flipflop', `antspotlight', and
334 * Added VMS to `bsod'.
335 * Compile without warnings in "gcc -pedantic".
336 * Updates to `webcollage' and `queens'.
337 * Fixed a bug that could cause PAM to hang.
338 Changes since 4.10: * New hacks, `hypertorus', `cubestorm', `glknots',
339 `blocktube', and `glmatrix'.
340 * Updates to `cloudlife', `engine', `xmatrix', and
342 * Rewrote `glslideshow': it should work on somewhat
343 wimpier video cards now.
344 * Various portability tweaks.
345 Changes since 4.09: * New hacks, `cloudlife' and `klein'.
346 * Added Apple ][+, HPUX, and OS/390 sessions to BSOD.
347 * Added some Matrix Reloaded text to `xmatrix'.
348 * Updates to `webcollage', `eruption', `jigglypuff',
349 `metaballs', and `endgame'.
350 * Completely ignore the `memoryLimit' setting now,
351 since it was still causing people GL grief.
352 * Various minor fixes.
353 Changes since 4.08: * New hacks, `flyingtoasters', `bouncingcow',
354 `jigglypuff', and `glslideshow'.
355 * More models in `engine'.
356 * Rewrote `xscreensaver-getimage' to remove reliance on
357 external image loaders (xv, chbg, xloadimage, etc.)
358 and to reduce flicker when loading files.
359 * Made `gflux' and `flipscreen3d' be mouse-spinnable.
360 Changes since 4.07: * New hacks, `atunnels' and `piecewise'.
361 * Physics improvement in `fluidballs'.
362 * Various fixes for XDarwin systems (X11 on MacOS X.)
363 * Added -clock option to `barcode'.
364 * Minor fixes to `endgame', `flurry', `flipscreen3d',
366 Changes since 4.06: * New hacks, `flurry', `metaballs', `eruption',
367 `popsquares', and `barcode'.
368 * Minor updates to `maze' for high density mazes.
369 * Added double buffering to `fluidballs' and `whirlygig'.
370 * Bug fixes for running xscreensaver to a remote XFree86
371 display (which nobody would ever do...)
372 * Updated `webcollage' (faster Alta Vista searching.)
373 * Updated `glplanet' so the sun sets in the west.
374 * Updated `sproingies' with smooth, unsegmented surfaces.
375 * Fixed Perl version-sensitivity in
376 `xscreensaver-getimage-file'.
377 * Fixed GTK2 scrolling bug in `xscreensaver-demo'.
378 Changes since 4.05: * New hack, `glblur' (disabled by default, since it
379 requires fast OpenGL texture support.)
380 * New hack, `halftone'.
381 * Updates to `endgame', `queens', `bumps', `glplanet',
382 `engine', and `circuit'.
383 * New version of `menger' that uses far fewer polygons.
384 * Fixed minor bug in `critical' that could cause some
385 bogus X servers to crash.
386 * Better labels in `molecule': the labels now appear to
387 be attached to the atoms, instead of floating in front
389 * Fixed bug that could rarely cause GL hacks to fail to
390 double-buffer (causing intermittent flickering.)
391 * Fixed a relative-URL-parsing bug in `webcollage'.
392 * Fixed a bug that (sometimes) caused the window manager
393 close box to kill `xscreensaver-demo' with a crash
394 instead of a graceful exit.
395 * Updated xscreensaver.pam to the Red Hat 7.3 way.
396 * More Gnome2-related configure crap.
397 * Updated to latest `config.guess' and `config.sub'.
398 * Fixed occasional core dump in `distort'.
399 * Added a Linux fsck failure and kernel panic to `bsod'.
400 * Added MacOS X kernel panic to `bsod'.
401 * Fixed a bug in `bsod' (all bsod bugs are ironic.)
402 * Fixed a bug that caused `xscreensaver-gl-helper' to
403 print a nonsense visual ID with some versions of
404 `printf': this could cause GL programs to display
405 incorrectly (e.g., flickery.)
406 Changes since 4.04: * More `configure' tweaks to try and get things working
407 on systems that both Gtk 1.x and 2.x installed.
408 * New hack, `endgame'.
409 * Minor updates to `gltext'.
410 Changes since 4.03: * Support for GTK 2.x / GNOME 2.x.
411 * The `configure' script will now use `pkg-config' if
412 you have it, in preference to `gtk-config', etc.
413 * New hacks, `lavalite', `queens', and `anemone'.
414 * Minor updates to `spheremonics', `gltext', `xmatrix'.
415 * You can use the mouse to manually spin most of the GL
416 hacks now (when they are displaying in a window.)
417 * Fixed a bug in `webcollage' (due to recent Alta Vista
418 url changes) that was causing it to try and load
419 incorrect image URLs.
420 * Made `xscreensaver-getimage' use gdk_pixbuf if it is
421 available: this means that those hacks that load images
422 will no longer rely on "xv", "xloadimage", etc. This
423 will close a race condition that could sometimes cause
424 your desktop background to be changed; and also makes
425 it possible for those programs to operate on image
426 files when running in windowed mode.
427 * `webcollage' can now be used in conjunction with
428 `driftnet' to display images snooped from your local
429 ethernet instead of obtained from search engines.
430 * Added man pages for all the hacks that didn't have
432 Changes since 4.02: * New hack, `spheremonics'.
433 * Minor updates to `webcollage', `cage', `moebius',
434 `morph3d', `boxed', `circuit', and `helix'.
435 * `pulsar' and `extrusion' can now load texture JPEGs.
436 * `rubik' now does non-square cubes.
437 * `fluidballs' now does various sizes of balls.
438 * `menger' and `sierpinski3d' now also show polygon
440 * `molecule' displays real subscripts in the formulae.
441 * GTK internationalization/localization support.
442 * Better detection of the various versions of libxml.
443 * Upgraded to autoconf 2.53 (from 2.13.)
444 Changes since 4.01: * Plugged a few minor leaks in `xscreensaver' and
446 * New hacks, `cubenetic' and `fluidballs'.
448 * Fixed sphere projection error in `glplanet'; installed
449 a better image of earth.
450 * Added Win2K and MacOS 1 crashes to `bsod'.
451 * Put back previous (better) version of `forest' that
452 was accidentially downgraded in the last release.
453 * New version of `bumps'.
454 * Made FPS computation in GL hacks more efficient: it
455 will influence the results less, thus resulting in
456 higher (but more accurate) reported frame rates.
457 Changes since 4.00: * New hacks: `twang', `glsnake', `boxed', `sballs',
459 * New hacks `apollonian', `euler2d', `juggle',
460 `polyominoes' and `thornbird', from xlockmore.
461 * Merged recent xlockmore changes into `ant', `braid',
462 `demon', `discrete', `drift', `fadeplot', `forest',
463 `grav', `hopalong', `ifs', `laser', `lightning',
464 `lisa', `lissie', `loop', `mountain', `penrose',
465 `rotor', `sierpinski', `slip', `sphere', `spiral',
466 `strange', and `vines'.
467 * Fixed the `gltext' bug that sometimes caused
468 horizontal lines to vanish again. This time for sure.
469 * Sped up `webcollage' by adding a C helper program to
470 replace the PPM pipeline. It also pastes images
471 semi-transparently now.
472 * Added support for the gdk_pixbuf library: if this lib
473 is available, then `blitspin', `xflame', and `flag'
474 can load GIF, JPEG, and PNG images in addition to XPM
476 * Fixed a rare race condition where the desktop-grabbing
477 hacks could sometimes leave the screen wedged, if the
478 user moved the mouse exactly when they were grabbing
479 the screen image (it would un-wedge the next time the
480 saver timed out or was activated.)
481 * Fixed incorrect colors in the screen-grabbing GL hacks
482 (`gflux' and `flipscreen3d'.)
483 * Made SIGHUP restart the daemon process (though using
484 `xscreensaver-command -restart' is still the preferred
486 * Tweaks to `xspirograph'.
487 * Minor configure and portability tweaks.
488 Changes since 3.34: * Redesigned `xscreensaver-demo' GUI: it now includes
489 small-preview and per-hack configuration dialogs.
490 * Added three new modes of operation: `One Screen Saver',
491 `Blank Screen', and `Don't Blank' (in addition to the
492 historical `Random Screen Saver').
493 * Configure now defaults to installing the hacks in
494 <prefix>/lib/xscreensaver/ instead of <prefix>/bin/.
495 (Most distros already did it this way.)
496 * New GL hacks, `menger', `engine', `flipscreen3d'.
497 * Made `sierpinski3d' be more colorful.
498 * New versions of `xmatrix' and `nerverot'.
499 * Fixed a bug in `starwars' that made the font be drawn
500 with thin lines in -root mode.
501 * Fixed a bad colormap bug in `crystal' that could make
502 *subsequent* hacks malfunction!
503 * Made `gflux' able to grab screen images (`-mode grab').
504 * Updated `webcollage' for recent search engine changes.
505 * Removed most command-line options to `xscreensaver':
506 just edit the ~/.xscreensaver file instead.
507 * Improved behavior on multi-screen and Xinerama systems:
508 the mouse now stays on the screen where the user left
509 it, and the password and splash dialogs always appear
510 on the screen that has the mouse.
511 * Made the splash dialog use more Gtk-like colors;
512 made it have only two buttons, "Settings" and "Help".
513 * Made `sonar' understand `.ssh/known_hosts2' format
514 files, and be better about stripping out illegal
516 Changes since 3.33: * Turned `memoryLimit' off by default, sigh. Apparently
517 some versions of the GL libraries (appear to) allocate
518 hundreds of megs for every GL program, so `memoryLimit'
519 was causing GL programs to malfunction or crash on
521 * Improved fading on TrueColor XFree86 4.1.x systems.
522 * New GL hack, `circuit'.
523 * Added `fuzz' mode to `decayscreen'.
524 * New version of `whirlygig'.
525 * Added links to `xplanet' and `sphereEversion'.
526 * Fixed rare race condition that could make `sonar' hang.
527 * Fixed potential crash in `speedmine'.
528 * Made `xscreensaver-demo' not crash when imageDirectory
529 was set to a non-existent directory.
530 * Made `xscreensaver-getimage-video' invoke XawTV's
531 `streamer' program better.
532 * Made `phosphor' and `starwars' deal with CR, LF,
533 or CRLF line endings.
534 * Changes for Cygwin compilation environments.
535 * Made `sonar' compile on systems that can't ping.
536 * Configure changes for HPUX 10.20.
537 * Made PAM code work on Red Had 4.2 systems.
538 * Made `xscreensaver-command -deactivate' work when the
539 saver is not active: what that does is reset the idle
540 timer, as if keyboard input had been detected. This
541 was added for the benefit of people writing DVD-playing
542 software: they can now prevent the screensaver from
543 kicking in by sending a -deactivate message once a
544 minute while the movie is playing and not paused.
545 * Various minor portability tweaks.
546 Changes since 3.32: * New hacks, `speedmine' and `whirlygig'.
547 * Sped up `pyro', made the explosions look a bit better.
548 * Added better stars to `glplanet' and `starwars'.
549 * Many internal changes to `webcollage'.
550 * Some new options to `attraction'.
551 * Minor fix to `noseguy' to avoid un-erased pixels.
552 * Rewrote the screen-eraser effects so that they complete
553 in the same amount of time regardless of how slow
554 your X server is (some of them were glacial on servers
556 * Fixed a potential free memory reference that could
557 sometimes cause a crash at startup.
558 * Possibly fixed a problem that could cause the daemon
559 to crash with an X error. I was never able to
560 reproduce this problem, but I think I might have
561 figured out what caused it.
562 * Worked around a problem that caused PAM authentication
563 to fail on some Red Hat 7.x systems.
564 * Added a `memoryLimit' parameter that controls the
565 amount of memory a graphics hack may allocate: if they
566 try to allocate more than this, malloc() will fail
567 (and they will exit or (safely) crash, rather than
568 hogging memory.) Default is 50M.
569 * Made `gnome-help-browser' be the default way to display
570 man pages in `xscreensaver-demo', if running on a
572 Changes since 3.31: * The image-manipulating hacks (`slidescreen', etc.) can
573 now operate on randomly chosen image files from disk,
574 or on frames captured from the system's video input,
575 instead of (or in addition to) manipulating images of
577 * Rewrote `vidwhacker' to use the new image-grabbing
579 * Made fading work on TrueColor XFree86 4.x systems.
580 * Fixed a subtle rendering bug in `atlantis' (the fish
582 * Made `atlantis' have a texture simulating light
583 reflections from the surface of the ocean.
584 * Fixed up label placement in `molecule'.
585 * Better color bars in `xteevee'.
586 * Made `install-strip' not try to strip scripts.
587 Changes since 3.30: * Put in more sensible defaults for DPMS, and updated
588 the documentation to reflect the fact that all your
589 DPMS settings are now belong to xscreensaver.
590 * Fixed the `xscreensaver.spec' file so that `--force'
592 * New versions of `rotzoomer' and `nerverot'.
593 * Fixed an OSF/1 compilation problem in `molecule'.
594 Changes since 3.29: * New hacks, `molecule', `dangerball', and `rotzoomer'.
595 * New version of `gflux'.
596 * Made `gltext' able to display the current time.
597 * Fixed a floating-point-precision problem in `gltext'
598 that sometimes caused horizontal lines to vanish.
599 * Removed the `-window-id' option from the hacks:
600 it never worked right, and was unnecessary.
601 * Made the `starwars' hack use thicker lines, antialias
602 the text, and fade out at the far edge instead of just
604 * Fixed an SHM segment leak in `moire'.
605 Changes since 3.28: * Better rendering of the new logo.
606 * New hack, `gltext'.
607 * Added `-planetary' option to `gears', to draw a
608 different kind of gear system.
609 * Made motion and rotation be smoother in `gears',
610 `glplanet', `moebius', `rubik', and `sierpinski3d'.
611 * Improved coloration in `sierpinski3d'.
612 * Made the GL hacks react to window size changes.
613 * Made most of the GL hacks take a -fps option (like
614 `pulsar' did), so you can use them to benchmark your
616 * Fixed the previous fix to `sonar'.
617 * Minor fix to `nerverot'.
618 Made sonar able to ping hosts on DEC OSF1.
619 * Eliminated a bogus "didn't get enough colors" warning
620 in some of the hacks.
621 Changes since 3.27: * New logo for xscreensaver!
622 * New hacks, `starwars' and `stonerview'.
623 * Made the motion of the bouncing ball in `stairs' be a
625 * Made newly-added screenhacks be added to .xscreensaver
626 automatically: if there are hacks in the app-defaults
627 file that are not also in ~/.xscreensaver, they will
628 be added to the end of the list.
629 * Redid the `Screensaver Options' part of the control
630 panel; xscreensaver now lets you configure your DPMS
632 * Fixed some Makefile problems with non-GL builds.
633 * Fixed detection of MesaGL for version 3.3.
634 * Better workaround to Red Hat 7.0's broken gcc.
635 * Added Sparc Solaris kernel panic to `bsod'.
636 Changes since 3.26: * New hacks: `zoom' and `whirlwindwarp'.
637 * Fixed a free-memory-reference bug in `sonar'.
638 * Better error handling when there are no suitable GL
640 * Added diagnostic dialog when xscreensaver-demo is
641 unable to launch xscreensaver (e.g., when running as
643 * Fixed a bug that caused screenhack argument changes
644 to be ignored when xscreensaver-demo was running as
645 root (if "root" and "nobody" have different home
647 * Made the programs default to ":0" if $DISPLAY is unset.
648 * Made the `-verbose' output include information about
649 which server extensions were supported at compile time.
650 * Worked around Red Hat 7.0's broken gcc 2.96.
651 * Updated default delays on the GL hacks to look better
652 on machines with super-fast 3D hardware.
653 * Install `screensaver-properties-capplet' to work around
654 the usual egregious GNOME lossage.
655 Changes since 3.25: * Added "enabled" checkboxes in the list of hacks in
656 xscreensaver-demo (Gtk version only.)
657 * New hacks `hyperball', `xrayswarm', and `gflux'.
658 * New versions of `nerverot', `galaxy', and `hypercube'.
659 * Small fixes to `phosphor', `shadebobs', `xflame',
661 * Added external helper program `xscreensaver-gl-helper'
662 to figure out which X visual to use for OpenGL
664 * Configure updates for XFree86 4.0, and for BSD.
665 * Made it be more tolerant of bogus /etc/group files.
666 * When installing the PAM config file, first try to just
667 copy an existing "xdm" or "login" config file, so that
668 xscreensaver does authentication in the same way as the
670 Changes since 3.24: * New hack, `nerverot'.
671 * Added BSD kernel panic to `bsod'.
672 * New version of `shadebobs'.
673 * New version of `petri'.
674 * Updated `webcollage' to handle recent Altavista URL
675 format changes; made it search the AP photo gallery.
676 * Revamped command-line options of `sonar' and made it
677 properly handle subnets.
678 * The `bubbles' hack can now trickle up or down the
680 * The `xsublim' hack can now read its text from programs.
681 * Support for GLE version 3 in `extrusion'.
682 * Fixed compilation problems in `maze'.
683 * Fixed a rare crash in `flow'.
684 * Fixes for minor installation problems.
685 Changes since 3.23: * Added `-ignorant' option to `maze' hack.
686 * Updates to `critical', `bsod', `xflame', and `flow'.
687 * Added support for Kerberos 5 (via its Kerberos 4
688 compatibility layer.)
689 * Fixed a bad leak in `xteevee'.
690 * Updated `webcollage' to handle recent Altavista URL
692 * Removed xscreensaver-demo's `Ok' and `Cancel' buttons,
693 since they were confusing people: all changes are now
695 * Made xscreensaver-demo install itself into the Gnome
697 Changes since 3.22: * Fixed some misplaced text fields in the Motif version
698 of xscreensaver-demo; fixed a crash in the Gtk version
699 that would happen if the programs list was empty.
700 * Fixed a recently-introduced bug in `pulsar'.
701 * Made `sierpinski3d' use solid tetrahedrons instead of
703 * Added `-trace' option to `xmatrix'.
704 * Added new hacks `xteevee' and `xspirograph'.
705 Changes since 3.21: * Fixed some bugs in xscreensaver-demo.
706 * Rewrote the Motif version of xscreensaver-demo to
707 match the new Gtk version.
708 * The Athena toolkit is no longer supported.
709 Changes since 3.20: * Tweaked the xscreensaver-demo UI (Gtk only.)
710 * Fixed a few visual selection bugs. I think the proper
711 GL visual should be used with nVidia systems now.
712 * Made the Makefiles obey $install_prefix.
713 * Made the `xscreensaver.spec' file able to generate both
714 GL and non-GL packages simultaneously.
715 Changes since 3.19: * Added new hacks `ripples' and `sierpinski3d'.
716 * Made `xscreensaver-command -exit' be silent when no
717 screen saver was running (instead of complaining.)
718 * Made `webcollage' and `vidwhacker' use `xloadimage'
719 when available (in addition to `xli' and `xv'.)
720 * Improved memory usage in `petri' and gave it a hard
721 cap on how much memory it can allocate.
722 * Added `-watch' option to `xscreensaver-command'.
723 * Made `xscreensaver-demo' come up with the
724 most-recently-run hack selected by default.
725 * Rewrote the Gtk version of `xscreensaver-demo'.
726 It's a lot easier to use now.
727 * Extended the format of the programs list in the
728 .xscreensaver file, for the benefit of the new
729 capabilities of `xscreensaver-demo'.
730 NOTE: you might want to delete your ~/.xscreensaver
731 file and allow it to be re-created! The old one
732 should still work, but xscreensaver-demo won't be as
734 Changes since 3.18: * Fixed gcc dependencies in `bumps' and `ccurve'.
735 * New hack, `extrusion'.
736 * Some of the web sites that `webcollage' was using as
737 its sources changed formats; tweaked it to understand
739 * Added typeahead in the password dialog: if the screen
740 is locked, and you unlock it by typing a character,
741 that key will be automatically inserted in the
742 password dialog (unless it is Return, Enter, Space,
743 or a non-printing key like Shift.)
744 * Made `xmatrix' take a `-small' option, since some
745 folks with tiny screens prefer a smaller font.
746 Changes since 3.17: * New versions of `shadebobs', `lmorph', and `distort'.
747 * Added `ccurve', `blaster', and `bumps' hacks.
748 * Replaced `forest' hack with a rewritten version.
749 * Worked around a Xinerama server bug.
750 * Fixed a bug I introduced in 3.10 that caused some
751 hacks to print out superfluous warnings about not
752 having gotten enough colors.
753 * Made `sproingies' obey the `-delay' option.
754 * Fixed a portability bug in `shadebobs'.
755 * Made `webcollage' and `vidwhacker' use `xli' in
756 preference to `xv', if it is available.
757 * Added a new source of images to `webcollage'.
758 * If running under KDE, xscreensaver will add itself to
759 KDE's list of screensavers (via xscreensaver.kss.)
760 * Improved detection of GL libraries.
761 * Made the password dialog include the date and time.
762 Changes since 3.16: * New version of `webcollage' -- deals better with
763 corrupted images, and can use an http proxy.
764 * New hack, `xsublim' (run it in the background,
765 rather than adding it to the programs list.)
766 * The xscreensaver daemon was leaking a file descriptor
767 each time you edited your .xscreensaver file. Fixed.
768 Changes since 3.15: * New version of `shadebobs'.
769 * Improved image selection in `webcollage', and sped it
771 * Made configure find the right version of perl.
772 * Rewrote the CGI part of `webcollage'.
773 * `make clean' was deleting some things it shouldn't.
774 * Fixed a typo in the default programs list.
775 Changes since 3.14: * Added `webcollage' and `shadebobs' hacks.
776 * Added a `-stdout' arg to `vidwhacker' so that it can
777 be used in a pipeline.
778 * Made `petri' use less memory.
779 Changes since 3.13: * Various improvements to the Gtk port.
780 * Turned off PAM by default on Solaris, since PAM seems
781 generally to be misconfigured out-of-the-box.
782 * Made the `--without-gtk' configure option work.
783 * Made configure check the Gtk version number, since it
785 * Fixed a bug in the code that attempted to prevent
786 changes of screen resolution while the screen is
788 * Fixed a race condition in `xscreensaver-demo' that
789 could cause an X error at startup.
790 * Added `-transparent' option to `deluxe'.
791 * Added `petri' hack.
792 Changes since 3.12: * Ported `xscreensaver-demo' to Gtk.
793 * Made it possible to build Motif, Gtk, and Athena
794 versions of `xscreensaver-demo' in the same directory
795 without reconfiguring.
796 * Made `xscreensaver-demo' chase symlinks before writing
797 the .xscreensaver file, so that if .xscreensaver is
798 itself a symlink, the underlying file will be replaced
800 * Some Makefile and configure tweaks for Solaris and
802 * Made it possible to set the fire color in `xflame'.
803 * Made transparency work in TrueColor (for `goop' and
805 * Fixed a multi-head bug introduced by the virtual
807 Changes since 3.11: * Made it so that you can't scroll the screen while the
808 lock dialog is up (with XFree86 virtual viewports.)
809 * Fixed a bug in `flag' that caused bob's chin to get cut
810 off after a few iterations.
811 Changes since 3.10: * Made `xjack' be black-on-white-ish, so that it looks
812 less like a computer screen and more like the
813 typewritten paper it's supposed to be.
814 * New version of `pulsar'.
815 * Fixed Solaris compilation problem in `phosphor'.
816 * Made xscreensaver notice XFree86's virtual root window
817 hack, so that if the X server's root window is larger
818 than the monitor's displayable resolution, the screen
819 saver will limit itself to the area that actually
820 appears on the screen.
821 * Made the xscreensaver daemon do a better job of
822 picking the visual class that should be used for GL
823 programs. Less user intervention should be needed
824 now: you can use the logical visual name `GL' instead
825 of having to figure out by hand which one to use.
826 * Oops, the visual was defaulting to "best" instead of
827 "default", because the .xscreensaver file was not being
828 loaded quite early enough.
829 * Made configure figure out how to build icmp ping
830 support into the `sonar' hack automatically.
831 * Made warnings about not being able to read shadow
832 passwords not be printed if compiled with PAM support.
833 * Improved PAM startup diagnostics.
834 * Worked around the Solaris PAM bug that was causing
835 crashes there, so now PAM is turned on by default.
836 * Made configure detect the number of arguments that
837 pam_strerror() takes, since on Linux, this apparently
838 changed between 2.0 and 2.2, sigh.
839 * Made the /proc/interrupts kludge look for "PS/2 Mouse"
840 as well as "keyboard".
841 * Made xscreensaver notice when there has been a sudden
842 large jump in wall-clock time, and if so, lock right
843 away, instead of waiting for "lockTimeout" to expire
844 first. (Laptops need this for safer recovery from
846 * Added `-throttle' option to `xscreensaver-command'.
847 Changes since 3.09: * Added `phosphor', `xmatrix', and `pulsar' hacks.
848 * Fixed a bug in the color allocator that sometimes
849 caused `starfish' to fall back to monochrome.
850 * Reduced the amount of code that runs before root
851 privileges are disavowed: "normal" and "shadow"
852 passwords now do some initialization as root, but the
853 PAM and Kerberos authorization schemes will be
854 initialized while running as "nobody". Supposedly
855 this closes a potential security hole when using
857 * Added some more sanity checking to configure.
858 Changes since 3.08: * Added `compass', `squiral', `xflame', `wander',
859 `spotlight', and `critical' hacks.
860 * Added some new modes to `decayscreen'.
861 * Made `deluxe' work in monochrome.
862 * Generalized usage of the Double-Buffer server extension
863 in several hacks (`compass', `deluxe', `interference',
864 `kumppa', and `moire2'.)
865 * Fixed another visual-depth problem in `rd-bomb'.
866 * The screen saver will now defer blanking if neither
867 the keyboard nor the mouse could be grabbed. Instead,
868 it will just try again in a few minutes. This fixes
869 a bad interaction between xscreensaver and programs
870 like VMware that hold the mouse and keyboard grabbed
872 * Added a new erase mode (expanding spiral.)
873 Changes since 3.07: * Fixed some bugs in my port of `t3d'.
874 * Added `penetrate' and `deluxe' hacks.
875 * When linking against Motif 2.x, also link against XPM.
876 * Added support for using /proc/interrupts for idle
877 detection on Linux. Now xscreensaver shouldn't kick
878 in when the user is active on a non-X virtual console.
879 * Upgraded to autoconf 2.13.
880 Changes since 3.06: * Configure tweaks (sometimes -lXmu wasn't getting linked
881 in properly; check for _Xsetlocale in -lXintl.)
882 * Portability fixes for sonar.c.
883 * Fixed a compilation problem when you have GL but don't
885 * Made configure notice when MesaGL requires -lpthread.
886 * Made `flame' ignore SIGFPE (not sure if this is the
887 right fix; it seems only to be needed on FreeBSD.)
888 * Kludged `rd-bomb' work on visuals that are of depth 24
889 but that *do not* support pixmaps of depth 32.
890 * Fixed `halo' to work properly in TrueColor.
891 * Changed `xscreensaver.spec' to install the hacks in
892 /usr/X11R6/lib/xscreensaver/ by default, since that's
893 where recent Red Hat distributions put them.
895 * Updated versions of `crystal', `hopalong', and `flow'
897 * Imported `demon' and `loop' modes from xlockmore.
898 Changes since 3.05: * Oops, the "default-n" visual descriptor was broken;
899 it was always installing a colormap if the
900 `installColormap' preference was set, meaning that
901 `xearth', `xv' and friends were using the wrong
902 colors on 8-bit systems.
903 * Turned off HAVE_PING in `sonar', since it compiles
904 on some Linux systems, but not others of similar
906 Changes since 3.04: * Fixed an off-by-1 in `distort'.
907 * Added `sonar' hack.
908 * New version of `glplanet' (with stars.)
909 * Made all hacks exit when you type `q' or `ESC' at them,
910 and made them obey the WM_DELETE_WINDOW ClientMessage.
911 * Fixed a nonfatal buffer overrun in lament (note:
912 lament still doesn't work with MesaGL 3.0: it dies in
913 lambda_textured_triangle1(), which is Mesa's bug, not
915 Changes since 3.03: * Added an `xscreensaver.spec' file, to make it easier
916 for other folks to generate RPMs.
917 * Made the password code work on HPUX in the situation
918 where: ``enhanced security'' is available; but not
919 used; but the user typed a password more than 8
920 characters long anyway. FTSOHPUX.
921 Changes since 3.02: * Made locking work when passwd aging is enabled.
922 * Added support for PAM (Pluggable Authentication
923 Modules.) It is still turned off by default, though,
924 since it doesn't seem to work on Solaris 2.6, and has
925 been behaving erratically on Red Hat 5.1.
926 * Made each possible authentication method be tried in
927 turn until one succeeds; this means that Kerberos is
928 being used, we will first check Kerberos, and if that
929 fails, will then consult the local password file.
931 * Save and restore the bits under the passwd dialog,
932 to avoid leaving a black rectangle behind when
933 unlocking is cancelled.
934 Changes since 3.01: * Not everyone has sys/select.h, sigh...
935 Changes since 3.00: * Some fixes to `reflect'.
937 * Made it log unsuccessful attempts to unlock the screen
939 * Fixed a bug where `xscreensaver-demo' could be seeing
940 a different programs list than `xscreensaver' did.
941 Changes since 2.34: * The xscreensaver daemon no longer links against Motif
942 or Athena: demo-mode and the preferences panel are no
943 longer built in to the daemon, but are now handled by
944 an external program, `xscreensaver-demo'.
945 (I decided that this, along with the recent addition
946 of the `.xscreensaver' config file, justified bumping
947 the version number to 3.00, since this is a fairly
948 major architectural change.)
949 * Lines in the `*programs' resource may now begin with
950 the character "-", meaning "don't run this hack."
951 In this way, it's possible to disable a hack without
952 throwing away the information about it (making it
953 easier to change your mind later.) Eventually the
954 preferences/demo mode GUI should represent this as a
955 checkbox or something.
956 * Fixed a short race condition where it was possible for
957 xscreensaver to die with a BadWindow error if it was
958 blanking the screen just as another window was being
960 * Made it possible to disable specific modes in `bsod'.
961 Changes since 2.33: * Fixed a bug that was making `pipes' generate way too
962 many valves. Made the viewpoint in `pipes' be selected
963 randomly instead of always being -10 degrees.
964 * Fixed a bug in the XSHM code, in the case where the
965 server supports the XSHM extension but is not the same
966 machine as the client.
967 * Made `rd-bomb' default to taking up the whole screen.
968 * Made it not try to do fading/unfading if no PseudoColor
970 * Initial attempt at supporting VT-locking (doesn't work
972 * Eliminated the `captureStdout' resource; now
973 `captureStderr' controls both streams.
974 * Added `-capture-stderr' and `-no-capture-stderr'
975 command-line arguments.
976 * Added `glplanet' hack.
977 * When a hack is selected with `xscreensaver-command
978 -select', that hack will be used until further notice
979 (until the saver turns off, or another activation
981 Changes since 2.32: * Made `xscreensaver-command' print error messages:
982 the xscreensaver daemon now responds to ClientMessage
983 events by writing a response message on a window
984 property, instead of just writing to its stderr.
985 * Made the ~/.xscreensaver file be automatically reloaded
986 when the file date changes.
987 * The password dialog and splash screen no longer depend
988 on Motif or Athena. This should clear up a number of
989 focus problems, and is the first step on the path
990 toward moving all of the Motif/Athena/whatever code
991 out of the xscreensaver daemon, and into external
993 * Don't complain about LessTif 0.86 any more, since the
994 new password dialog makes that problem go away.
995 * Configure tweaks for Irix 6.5, SunOS 5.something.
996 * New `-reflect' option to `distort'.
997 Changes since 2.31: * Added reading and writing of a ~/.xscreensaver file,
998 so that the Preferences panel can save its settings.
999 * New version of `rubik'.
1000 * Added `-select N' argument to `xscreensaver-command'.
1001 * Oops, left out some of the `bubbles3d' files...
1002 Changes since 2.30: * The cursor was invisible in the password dialog. Fixed.
1003 * Made configure warn against MesaGL 2.6.
1004 * Fixed X error at startup when using non-default visual.
1005 * New version of `crystal', `ant', and `atlantis' from
1007 * New hack, `bubble3d'.
1008 * Added some new modes to `bsod'.
1009 Changes since 2.29: * Changed the order in which -lSM and -lICE are linked
1010 to be after Motif instead of before (Lesstif on Irix
1012 Changes since 2.28: * Work around a bash bug in configure.
1013 * Tweaked HPUX paths again. FTSOHPUX.
1014 * Made configure recommend against LessTif 0.86, due
1015 to a bug in that version that causes a security hole
1016 in the screen locking code. LessTif 0.87 will fix it.
1017 * Made all of the `--with' options to `configure' accept
1018 a directory option as well (so that --with-motif=/FOO
1019 will add -I/FOO/include -L/FOO/lib). I believe this is
1020 the Configure Party Line of how do to such things.
1021 * Fixed a bug where the mouse was left un-grabbed
1022 after the first time the graphics hack was changed
1023 (simplified all of the mouse-grabbing logic.)
1024 * Maybe possibly perhaps made `vidwhacker' really not
1025 leave stray xv windows around. This time for sure.
1026 * Added a new erase mode (random dots fizzling out.)
1027 * Added `-prefs' argument to `xscreensaver-command',
1028 that brings up the Preferences dialog directly (it
1029 seems that nobody ever noticed the `Preferences' button
1030 on the Demo Mode dialog, maybe this will help.)
1031 * Added a splash screen. Turn it off with *splash:false.
1032 Changes since 2.27: * Better macsbug text in `bsod'.
1033 * New version of `distort' with many new modes.
1034 * Plugged a leak in `coral'.
1035 * Tweaked configure for HPUX.
1036 * Removed some compiler warnings.
1037 * More consistent usage of stderr versus stdout.
1038 * More diagnostics should an X error occur.
1039 * Fixed a possible crash in SGI-specific unfading code.
1040 Changes since 2.26: * Improved version of `distort'.
1041 * Made `lament' compile against OpenGL 1.0 (though it
1042 still requires 1.1 to work properly.)
1043 * Updated my email address and home page.
1044 Changes since 2.24: * Improved motion in `rd-bomb'.
1045 * Added XSHM (shared memory extension) support to the
1046 `distort', `interference', `moire', `rd-bomb', and
1047 `swirl' hacks, which speeds them up a bit.
1048 * Added `lament' hack.
1049 Changes since 2.23: * Tweaked the order of the -L options again.
1050 * Cleaned up configure's `--help' message.
1051 * Added `kumppa' hack.
1052 * Smarter maze-solving algorithm in `maze'.
1053 * Took `xlyap' out of the default list of hacks, since
1054 it's just incredibly buggy (and slow.) Maybe someday
1055 someone will fix it...
1056 * Added `distort' hack, but didn't add it to the default
1057 list (yet) because it's still too slow.
1058 * Made the Athena demo dialog look more like the Motif
1059 version; it has a text-entry field now, too.
1060 * Made the Athena password dialog echo asterisks, like
1061 Motif does, instead of using a flyspeck font.
1062 * Some random configure tweaks.
1063 * Added a `timestamp' resource that makes the `-verbose'
1064 messages include the time at which they were printed.
1065 Changes since 2.22: * The fix for SGI's ``scheme'' nonsense broke things, and
1066 let the user's "*background" resource show through.
1067 Fixed it in a different way.
1068 Changes since 2.21: * Added support for the DPMS server extension (Display
1069 Power Management System.)
1070 * Made configure advertize the `--enable-subdir' option a
1071 little more, since that seemed to cause some people
1072 stress. Also, made that directory be built into the
1073 xscreensaver executable, as a hardcoded prefix to
1074 $PATH. (Might help, shouldn't hurt.)
1075 * Made configure prefer the two-arg gettimeofday to the
1076 one-arg version, since AIX doesn't have any prototypes.
1077 * Made it work with Xaw3d (the 3D Athena library.)
1078 * Made `make install' create directories as necessary.
1079 * New version of lmorph from Sverre.
1080 * Added `crystal' and `discreet' hacks from xlockmore.
1081 * Added a new mode to `bsod'.
1082 Changes since 2.20: * Made `xscreensaver-command -time' use different words.
1083 (It now describes the two states as "screen blanked
1084 since..." and "screen non-blanked since..." instead of
1085 "active since..." and "inactive since..." which a lot
1086 of people interpreted as meaning the opposite of what
1088 * Improved some error messages, in the hopes of making
1089 the distinction between the xscreensaver and
1090 xscreensaver-command programs more obvious.
1091 * Rewrote (and reorganized) parts of the xscreensaver and
1092 xscreensaver-command manual pages.
1093 * Renamed xscreensaver's `-lock' command-line option to
1094 be `-lock-mode', to avoid confusion with the `-lock'
1095 option to xscreensaver-command, which does a totally
1097 * Removed xscreensaver's `-demo' command-line option for
1098 a similar reason; use `xscreensaver-command -demo'
1100 * Disabled SGI's ``scheme'' nonsense in a better way than
1101 fully-qualifying the background colors in every single
1103 * Fixed some other minor cosmetic problems when *sgiMode
1105 * Fixed an X error in `bsod -root' (how ironic...)
1106 Changes since 2.19: * Fixed a bug that caused the mouse to sometimes not be
1107 grabbed properly (meaning the window manager menu could
1108 pop up over the demo-mode display.)
1109 * Fixed a bug that made the stderr output sometimes get
1111 * Fixed a bug that made the demo-mode scrollbar move too
1113 * Protected against a possible buffer overflow.
1114 * Made `vidwhacker' not leave stray xv windows around.
1115 * New version of `ant' so that Bagley doesn't calve.
1116 * Make configure on AIX get XShm from the right library.
1117 Changes since 2.18: * One file was missing from the tar file. Fixed.
1118 Changes since 2.17: * Oops, atlantis wasn't being built by default. Fixed.
1119 * Added `epicycle' hack.
1120 * Added `interference' hack.
1121 * Added `truchet' hack.
1122 * Added `bsod' hack.
1123 * Added some new modes to `vidwhacker'.
1124 Changes since 2.16: * Added a -window-id argument to most hacks, so that they
1125 can draw on arbitrary externally-provided windows.
1126 * Synched with xlockmore 4.11a01.
1127 * Added `flow' hack.
1128 * Added `atlantis' GL hack.
1129 * Renamed `puzzle' hack to `jigsaw', since xlock already
1130 had a different mode called `puzzle'.
1131 * Made it self-configure properly when Motif 2.1.0 is
1132 being used (requires -lXp now, sigh...)
1133 Changes since 2.15: * Made `flag' able to do XPM images.
1134 * New look for the xscreensaver logo (`xroger').
1135 * Fixed compilation error on Suns with adjunct passwords.
1136 * Got multi-architecture builds working again.
1137 * Some configure tweaks for building on HPUX and Solaris.
1138 * Fixed bug in decayscreen.
1139 * Fixed typo in passwd.c.
1140 * Made `cynosure' not die when colormap is full.
1141 Changes since 2.14: * Added `cynosure' hack.
1142 * Added `moire2' hack.
1143 * Tweaked `erase.c' some more.
1144 * Made unfading a bit smoother.
1145 * Added `vidwhacker' hack (not installed by default.)
1146 * Added `stairs' hack.
1147 * Split `escher' into `cage' and `moebius', as per
1149 * Changed subprocess handling to use sigaction() instead
1150 of signal() if it's available (this is necessary for
1151 SCO but should work fine on other systems too.)
1152 * Various other tweaks.
1153 Changes since 2.13: * Better fix for the Motif drag-and-die lossage.
1154 * Put in some kludges to work around a LessTif bug.
1155 * XScreenSaver is known to work with LessTif 0.82 now.
1156 * Made fading work on high-end SGI video hardware.
1157 * Fixed another SGI-specific bug in screen grabbing;
1158 will the madness never cease?
1159 * Fixed another crash in `xlyap'.
1160 Changes since 2.12: * Made `decayscreen' do directions other than down.
1161 * Improved `puzzle'.
1162 * Fixed a crash in `xlyap'.
1163 * Added CDE info to the man page, removed `cde.txt'.
1164 * Configure tweaks for Zippy.
1165 * Turned off the signal handling in `bubbles' because
1166 it was sometimes failing to die.
1167 * Added `hacks/xscreensaver-sgigl.c' to make it possible
1168 to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
1169 with xscreensaver. Finally!
1170 * Fixed a buffer overrun in the locking code that some
1171 wily, malicious cracker must have slipped in.
1172 * Disabled Motif drag-and-drool in the dialog box
1173 buttons, since it's broken in some old versions of
1175 Changes since 2.11: * Added `README.debugging'.
1176 * Added `puzzle' hack.
1177 * Added `xlyap' hack.
1178 * Added `default-n' as a visual name, so that one can
1179 have -install on by default, but turn it off for
1180 certain poorly-behaved hacks (like xv.)
1181 * Added support for grabbing frames of external video
1182 (on SGI) to the screen-grabbing hacks (decayscreen,
1183 slidescreen, slip, blitspin, and puzzle.)
1184 * Improved look of tiles in `slidescreen'; fixed its
1185 color allocation problem.
1186 Changes since 2.10: * Tweaked `blitspin', added it to the default list.
1187 * Added `lissie', `mountain', `triangle', `worm',
1188 `rotor', and `ant' from xlockmore.
1189 * Updated `sierpinski', `galaxy', and `lisa'.
1190 * Thickened the lines in `braid' and `lmorph'.
1191 * Updated VMS makefiles.
1192 * Renamed `fract' to `vines'.
1193 * Added `xjack' hack.
1194 * Made a few more hacks use erase.c, and added a few
1196 * Fixed compilation problem with Sun's version of OpenGL.
1197 * Added ability to use sigaction() instead of signal()
1198 to work around a SCO kernel bug.
1199 Changes since 2.09: * Fixed colormap bugs in `rd-bomb'; sped up `coral'.
1200 * Configure tweaks for *BSD.
1201 Changes since 2.07: * New hacks `rd-bomb' and `coral'.
1202 * New version of `maze' with some new algorithms.
1203 * New colorized version of `rocks'.
1204 * Fixed a bug in qix on 64-bit machines.
1205 * Fixed a bug in the -time option.
1206 * Fixed a bug in configure related to LessTif.
1207 Changes since 2.06: * Minor header tweaks in windows.c and flag.c.
1208 * Made multi-architecture ($VPATH) builds work properly.
1209 * Merged new GL stuff from xlockmore (rubik, morph3d.)
1210 * Fixed intermittent crashes in `imsmap' and `munch'.
1211 * Added `fadeplot' hack from xlockmore.
1212 Changes since 2.05: * Merged in VMS support from Patrick Moreau.
1213 Changes since 2.04: * Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
1214 configure to detect the extra-random -Xss library.
1215 Changes since 2.03: * HP configure tweaks. Detect and warn about LessTif.
1216 * Fixed low-color behavior of `goop', `pyro', `starfish',
1217 `greynetic', `flame', `halo', and `moire'.
1218 Changes since 2.02: * Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
1219 * Added `munch' hack.
1220 * Added basic dependencies to the Makefile.in files.
1221 Changes since 2.01: * Fixes for compiling with the MIT saver extension.
1222 * Made the yow/fortune program be a configure option.
1223 * Various configure tweaks.
1224 Changes since 2.00: * Added `goop' and `starfish' hacks.
1225 * Added colomap cycling to `halo'.
1226 * Made `attraction' use the new colormap allocator.
1227 * Added better $PATH diagnostics.
1228 * There was a bug in frand! Color selection should be
1230 Changes since 1.34: * Converted to use `configure' instead of `imake'.
1231 * ANSI C is now required.
1232 * Added Kerberos locking support, from Nat Lanza.
1233 * Made the stderr text use overlay planes, if possible.
1234 * Reworked the xlockmore compatibility stuff again.
1235 * Added `gears', `superquadrics', `escher', `pipes',
1236 and `sproingies' hacks (depend on OpenGL.)
1237 Changes since 1.33: * Fixed some bugs, made fading be a little smoother.
1238 Changes since 1.32: * Made it work with multi-headed displays.
1239 * Generalized sub-process management (Unix sucks!)
1240 * Added interactive mouse frobbing to Julia.
1241 * Added (untested) support for HPUX shadow passwords.
1242 * Made normal non-shadow passwords be checked if the
1243 shadow passwords aren't accessible for some reason.
1244 Changes since 1.31: * Removed *colorPrograms and *monoPrograms resources:
1245 made it possible to specify the desired visual on a
1247 * Cleaned up / restructured the driver: no more globals.
1248 * Made the Motif and Athena dialogs share more code.
1249 * Probably fixed some Athena colormap-installation bugs.
1250 * Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
1251 * Fixed divide-by-zero in bright random colormaps.
1252 * Added an improved version of xlock's `flag' hack.
1253 * Made unfading work better, and not flicker on SGIs.
1254 * Added `sphere', `forest', `lisa' hacks from xlockmore.
1255 * Added (untested) support for SunOS Adjunct passwords.
1256 Changes since 1.30: * Improved colors and colormap cycling of many hacks.
1257 * Cleaned up xlockmore compatibility layer.
1258 * Made `blitspin' able to grab an image off the screen.
1259 * Ported `swirl' and `bouboule' hacks from xlockmore.
1260 * Made the driver more careful about not leaving bits on
1261 the screen, or allowing other windows to raise
1262 themselves: it now re-blanks the screen every so often.
1263 * Added `-time' option to `xscreensaver-command'.
1264 * Improved SGI screen-grabbing some more: now it can grab
1265 TrueColor screens into PseudoColor windows and have the
1266 colors still come out semi-reasonably.
1267 Changes since 1.29: * Made `slidescreen' and `decayscreen' work better on
1268 SGIs when windows of different visuals are present, by
1269 using the XReadDisplay() extension to get a true 24-bit
1270 image out of the frame buffer.
1271 * Made `noseguy' be in color, if compiled with XPM.
1272 * Ported `braid', `drift', `fract', `galaxy', `grav',
1273 `ifs', `julia', `laser', `lightning', `penrose',
1274 `sierpinski', `slip', `spiral', and `strange' hacks
1276 * Merged `hopalong' hack with a more recent version.
1278 Changes since 1.27: * Added `deco', `moire', and `kaleidescope' hacks.
1279 * Merged in support for non-Motif locking and demo mode.
1280 * Made `blitspin' and `bubbles' work in TrueColor.
1281 * Fixed a stupid bug I introduced in `imsmap'.
1282 * Added `poly' and `gravity' options to `qix'.
1283 Changes since 1.26: * Added support for SGI SCREEN_SAVER extension.
1284 * Made `fade' and `unfade' work on 8-bit SGIs.
1285 * Made the dialog boxes more Motify.
1286 * Added `bubbles' hack.
1287 Changes since 1.25: * Added `lmorph' hack.
1288 * Added viscosity and mouse-control to attraction.
1289 * Fixed possible bad color choices in qix and attraction.
1290 * Added ramp-mode to halo.
1291 * Added a new RNG, which is faster and more portable
1292 than using the RNG in libc.
1293 * Made locking work on SCO.
1294 * Various other minor tweaks that I don't remember.
1295 Changes since 1.24: * Made it capture the stdout/stderr of its subprocesses
1296 and present them on the screensaver window itself.
1297 * Made demo mode work correctly with non-default visuals
1298 and color maps, instead of always using the defaults.
1299 * Added -visual argument to all included screenhacks.
1300 * Support for the R6 MIT-SCREEN-SAVER server extension.
1301 * Made the demo mode list scroll properly.
1302 * Added `pedal' hack.
1303 Changes since 1.23: * Fixed some private-colormap oddities in slidescreen,
1304 decayscreen, and xroger. Fixed apparent conservation-
1305 of-mass problem in pyro; made the shrapnel round.
1306 Changes since 1.22: * Minor tweaks for IRIX5; fixed locking race condition.
1307 Changes since 1.21: * Minor tweaks for X11R6.
1308 * Fixes for non-default visuals.
1309 Changes since 1.20: * Fixed bug in color blitspin; added default image.
1310 * Added diagnostics to noseguy. Fixed off-by-one
1311 error in flame. Added some missing casts.
1312 Changes since 1.18: * Added `flame' hack.
1313 * Fixed a minor Motif dialog text field bug.
1314 * Fixed yet another XPointer-not-defined-in-R4 bug.
1315 Changes since 1.17: * Added support for shadow password files.
1316 * Fixed some Motif-related locking bugs.
1317 * Added diagnostics when locking is disabled.
1318 * Made blitspin able to use the XPM library.
1319 * Added `decayscreen' hack.
1320 Changes since 1.16: * Added `halo' hack.
1321 Changes since 1.15: * Portability fixes.
1322 Changes since 1.14: * Broke the driver up into more source files.
1323 * Moved the hacks into their own directory.
1324 * Made all `time' parameters accept the 00:00:00 syntax,
1325 so that even the parameters which are normally read as
1326 minutes can be specified in seconds.
1327 * Added colormap cycling to `imsmap'.
1328 * Made hyper work with K&R compilers.
1329 Changes since 1.13: * Added `orbit' option to `attraction' hack.
1330 * Added `lock-timeout' option.
1331 * Cleaned up options of `maze' hack.
1332 Changes since 1.8: * Added demo mode, and locking.
1333 * Added `maze' hack.
1334 * Added `norotate' option to `rocks' hack.
1335 Changes since 1.4: * Works when run from XDM before anyone logs in.
1337 * Can use `xv' as a slideshow without using up colormap
1338 entries while the screen is not blanked.
1339 * Fixed a BadDrawable error in non-XIdle mode.
1340 * Added `blitspin' and `imsmap'.
1341 Changes since 1.0: * Current list of included hacks is now: qix, helix,
1342 rorschach, attraction, greynetic, rocks, pyro,
1343 hopalong, and noseguy.
projects / xscreensaver / blob